People willing to have a blood transfusion already have plenty of options, so factor them out of your analysis. (They are already 'cherry-picked' by every other

People willing to have a blood transfusion already have plenty of options, so factor them out of your analysis. (They are already 'cherry-picked' by every other doctor.) Among those who would prefer not to receive blood, should the doctor be experimenting with this novel approach on all patients, without regard to a risk of complications? How would that be more ethical?